Door-operating device.



D. S. BARROWS. DOOR OPERATING DEVICE.

APPLICATION FILED JULY 6, 1911.

Patented July 8, 1913.

wlfmzssas L J fr Wow 8. iis'wm W I U. r ATTORNEY UNITED STATES Parana OFFICE.

DONALD s. BARRows, or PATERSON, NEW-JERSEY, ASSIGNOR 'ro- AMERICAN can AND FOUNDRY COMPANY. or ST.,,LOUIS, MISSOURI, AYCORPORATION or NEW JERSEY.

DOOR-OPERATING DEVICE.

Specification of Letters Patent.

Patented Jui s, 1913.

Application, filed July 6; 1911. Serial No. 637,203.

To all whom it may con-ccrna H Be it known that I, DONALD" S. Banmays,

residing at Paterson, Passaic couflty, -Ne\v v tion, though it is to be understoodQt-batfie invention is not limited to the exat details of construction shown anddescribed, as it is obvious that various modifications thereof will occur to pcrsons skilledfin the art.

In said drawings: Figure l is a transv \orso sectional viewthrough a portion of a car underframe, illustrating one of-the drop or dumping doors inthe floor thereof and the mechanism, comprising this; invention, applied thereto for operating said door.

Fig. 2 is a detail sectional view. showing the door operating mechanism connected to doois upon opposite sides of theorossbearer of the underframe, said section being taken 1 on the plane of line 2 2 of Fig.1;-

3 is avertical sectional View through the cre'ss bearer illustrating details of and the man ner of connecting a retaining memberfor support for a rack bar, to said'cross bearer. The ob ect of this Invention is to provide a mechanism for operating the. drop doors of railway cars which mechanism is simple of construction and,'in the design of which. .110 slots are required in the diaphragms ot the car underframe, which slots would neces-.

sarily weaken the cross'bearers;

Referring to the drawings, 1' indicates one of the center sills, 2 one ofthe side sills and 3 one of the cross bearers of ordinarygondola car construction. The crossbearer 3 is preferably a vertical plate member formed" of a single sheet of metal bent to form a U shape as shown in Fig. 2, or a-pair of diaphragms spaced apart in such manner as to present vertical Walls 44 upon which the lever. mechanism comprising the invention is supported. Y p

The drop doors 5-5are pivotally connected along their inner edges to the center sill as at 6 and itwill be understood that there may be as many-doors iu the length of a car as may be desired, and that each of said doors is provided with a' le\'er operating mechanism fixedto each of-its sides adjacent oppositesides of the cross bearers and bolsters. 1 i

The ope'rating'shatt- 7 extends through suit-able bearings 8 secured to the crossbezirers, below the doors. Adjacent the outer surface of each of the cross bearer walls the operating shaft-is fitted with a pinion 9, the teeth of which are held in constant engagement with a rcciproeatoryrack bar 10 through the oflice of a retaining member 11, pivotally supported upon theoperating shaft. The retaining member 11 comprises two plates 12 titted witha pair of rollers 13-13 adapted to engage an outer lit-face A bell crank 1. 1;; is piva otally connected by the end of its long arm of the rack bar 10.

preferably with :1 depending flal'lge formed upon the edge otlhe door. The opposite arm, as 1:"), of the bell erankis pivot-allyeonnected to the end of the rack bar 10. The central pivotot tlie' 'bcll crank is inovablv supported upon the free end of a link It p upon a fixed pivot 17 carried upon the wall The link 16 \\'it-h;,the

which link is, in turn, roekably mounted of th'e cross bearer. long arm of the'bell crank 14-co1iip'is'cs a toggle, which when the door 1s open, is told ed beneath the door as shown by dotted lines in Fig. 1 and which, when the door is closed,

is straightened out in suclrmannerthat the middle pivot and the opposite end pivots of the toggle are in alinement, or preferably until the middle pivot has moved slightly beyond a line between the opposite end pivots. A stop 18 is fixed to the wall 4: ofthe cross bearer-tor engaging the free end of the link 16 in the ath of the middle pivot of the toggle for limiting the movement of said middle pivot when the toggle is straightened and the door is locked. From" this description it Will be apparent that, as-

'surning the door to be open, rotation of the operating shaft and gears 9'in a cont-raclockwise direction Fig. 1 will force the short arm 15 of the bell crank toward the outer side of the car, such movement not only serving to swing the bell crank upon its central.

ivot'but also to move said central pivot, 1n, the free end of the link 16, to

the position shown by full lines in Fig. 1

.whcre the door is positivelyjlocked in closed posit-ion and the thrust thereof is transmit ted directly throughthe toggle described and to the pivot I 17 thus relieving the operating shaft of all tendency to rotate.

An aperture 19 is "formed through the web of the center 'silllfor admitting the end of the rack bar 10 when the door is opened.

It will be noted that, when the door is open, its weight is. supported directly upon the upper end of the link 16 which is arranged to engage alateral project-ion, as 20, formed upon the'edge of the door, the long arm of the bell crank, when in this position,

being in tension and serving to retain the link. 16 in supporting position.

Only such parts of a car structure as are necessary to an understanding of thecon- V struction, preferred location and'op eration be .understoo of the door operatingmeans are illustrated in the accom' anying drawings, butit is to that any suitable car frame may be usedand the apparatus constituting the present invention applied thereto. It will also beunderstood that the doors may be supportediupon transversely extending members of-the underframe where the car framing is; adapted to such disposition of the doors;

1. In a door operating device, the combination .of a car underframe including a crossbeare'r, a door, a toggle link connec tion between said cross-bearer and said door, ,a laterally projecting arm'formed upon one linkof said; toggle, and means engagingsaid arm for ope iting said toggle toclose said inf- .1,

operating device, the combinationcomprising-an underframe, a door, a

toggle link connection including a bell crank lever between said underframe and said door, alaterallyprojecting rack bar pivot:

ally connected to said lever, and means en-i gaging said bar for operating said toggle to lock said door in closed position.

3. In a door operating device, the combination comprising a car underframe, includmg a center Slll havmgan'aperture therein,

-a door, a toggle link connection between said undertraine and said door, a projecting arm connected with one link of said toggle and-adapted to extend through the aperture in the sill, and means engaging said arm for operating said toggle to close and lock said door. I

4. In a door operating device, the combination comprising a car underframe inc1uding a vertical-plate member, a door, a toggle link connection including a bell crank lever pivoted to said doorand a link pivoted to the underframe, a laterally projecting arm formed upon said lever, a shaft supported in said plate member, and means engaging said shaft and said arm forhmovingisaid toggle into one position for closing and lock ingsaid door andinto another position for opening said door. 5. In a door operating device, the combination comprising a car frame including a vertical platemember, a door, a bell crank pivotally connected by one of its arms to said door, a link pivotally supported upon said car frame and havingits one end con nected with the middle pivot of said bell crank, means connected with the other arm of said bell crank for swinging said bell. crank and link to operate said door, and a shaft'supported in said plate member for actuating said last mentioned means. V

G. In a door operating device, the combination comprising a car frame including a cross-bearer, a door, a bell crank pivota lly 3 connected by one of its arms to said door, a

swinging link pivotally supported at one end, the middle pivot'of said bell crank be.- ing coupled with and movable with the other end of said link, a shaft'supported in said cross-bearer, and means engaging said shaft q and said bell cranlqfor'moving said bell crank and link to operate said door.

7. In a door operating device, the combination bomprisinga car frame including a cross-bearer, a door, a'bel'l crank pivotally connected by one of its arms to said door, a swinging link pivotally supported atone" end, the middle pivotof'said bell crank being coupled with-and movflablewith the otherend of saidlink, a shaftsupported insaid cross-bearer, means engaging said shaft and said bell crank for moving said fbell crank and link to lock said door, and means for limiting the movement, of said bellcrank 5 and link to'retain said door in locked position.

8. In a door operating device, the combination comprising a car frame, a door, a

toggle link connection between said car frame and said door, one of the links of said toggle being pivotally connected with said door and the other link of said toggle being pivotally connected to said car frame, and, means operatively engaging said toggle for 1 5 operating said door, said last mentioned toggle link being adapted to be engaged by said door for limiting the opening move-'- ment of said door.

9. In a door operating device, the combination comprising a car underframe, in- I eluding a cross bearer, a doo", a pivot on said cross bearer beneath the oor, a toggle link connection between 'said pivot and said door, means engaging said toggle for opening said door, said toggle link serving to form a support for said door.

10. In a door operating device, the combination comprising a car frame, a door, a toggle link connection between said car 139 frame and said door, a laterally projecting arm formed upon one link of sa d toggle, an laperating shaft, and rack *and pinion mechanism between said operating shaft and said arm for moving said toggle to operate said door.

11. In a car door operating device, a door, an underframe, a bell crank lever connected with said door and said underframe, means for actuating said bell crank lever including a rotatable member and a reciprocatory member in engagement therewith, and pivoted means for supporting one end of said reciprocatory member.

12. In a car door operating device, a door, an underfra me, a bell crank lever connected with said door and said underframe, means for actuating said bell crank lever including a rotatable member and a reciprocatory member, a swiveled support'for said reciprocatory member in engagement therewith, I

side of said door, a reciprocatory bar connected near one end with said bell crank 1ever, means for actuating said bar, and pivotally supported means for supporting the opposite end thereof.

In witness whereof I have hereunto set my hand in the presence of two'witne'sses DONALD SI BARROVVS.

lVitnesses:

G. V. \VAsHmo'roN,

A. KASSLER.

Copies of this patent may be obtained for five cents each; b5 addressing the Commissioner of Patents, Washington, D. G. 

